A still from a YouTube video which suspects an unidentified object was spying on the 1971 NASA moon missionYouTube

While UFO sightings have been reported from various corners of the world, a fresh report has claimed that a suspected Unidentified Flying Object was hovering over the lunar horizon and was perhaps spying on the 1971 Apollo 15 mission conducted by Nasa.

Streetcap1 reported the discovery via a YouTube video and explained the findings saying:

"Dudes, I just upload what I find, I believe it's put there to be found. Remember a ufo is an unidentified flying object not an alien craft."

Researchers have been speculating about extraterrestrial activities in and around Earth for many years and the recent find by Streetcap1, adds to rumours of the existence of UFOs.

The original photo was taken on the surface of the moon, during the 67 hours between 30 July and 2 August, 1971. Astronauts David Scott and James Irwin were on the Apollo 15 mission.

However, researchers have warned UFO enthusiasts not to go overboard while judging suspected flying objects, as they feel it can be anything other than aliens from the outer world scrutinising Nasa's moon mission.

Scott Waring of UFO Sightings Daily fame observed the picture and claims that the mysterious object is of triangular shape and it appears like spying on the Apollo 15 mission

"This discovery was made by Streetcap1, and the object he found does appear to be some kind of craft, but with a shape unlike anything I have seen before," Waring wrote in his report.

"Sure it looks like a triangle, but actually it seems more like three large tubular sections that become one. This is probably a drone keeping an eye on the Apollo 15 mission, perhaps out of curiosity, or perhaps out of fear," he concluded.